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Defer passing a ConnectionLayer to sshshare.c.

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This paves the way for me to reorganise ssh.c in a way that will mean
I don't have a ConnectionLayer available yet at the time I have to
create the connshare. The constructor function now takes a mere
Frontend, for generating setup-time Event Log messages, and there's a
separate ssh_connshare_provide_connlayer() function I can call later
once I have the ConnectionLayer to provide.

NFC for the moment: the new provide_connlayer function is called
immediately after ssh_connection_sharing_init.
This commit is contained in:
Simon Tatham
2018-09-21 17:00:36 +01:00
parent 54b300f154
commit a703f86731
3 changed files with 21 additions and 10 deletions
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20
sshshare.c
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@ -2052,6 +2052,12 @@ static const Plug_vtable ssh_sharing_listen_plugvt = {
share_listen_accepting
};
void ssh_connshare_provide_connlayer(ssh_sharing_state *sharestate,
ConnectionLayer *cl)
{
sharestate->cl = cl;
}
/*
* Init function for connection sharing. We either open a listening
* socket and become an upstream, or connect to an existing one and
@ -2063,7 +2069,7 @@ static const Plug_vtable ssh_sharing_listen_plugvt = {
* upstream) we return NULL.
*/
Socket ssh_connection_sharing_init(
const char *host, int port, Conf *conf, ConnectionLayer *cl,
const char *host, int port, Conf *conf, Frontend *frontend,
Plug sshplug, ssh_sharing_state **state)
{
int result, can_upstream, can_downstream;
@ -2090,6 +2096,7 @@ Socket ssh_connection_sharing_init(
sharestate = snew(struct ssh_sharing_state);
sharestate->plugvt = &ssh_sharing_listen_plugvt;
sharestate->listensock = NULL;
sharestate->cl = NULL;
/*
* Now hand off to a per-platform routine that either connects to
@ -2115,16 +2122,16 @@ Socket ssh_connection_sharing_init(
/* For this result, if 'logtext' is not NULL then it is an
* error message indicating a reason why connection sharing
* couldn't be set up _at all_ */
logeventf(cl->frontend,
logeventf(frontend,
"Could not set up connection sharing: %s", logtext);
} else {
/* Failing that, ds_err and us_err indicate why we
* couldn't be a downstream and an upstream respectively */
if (ds_err)
logeventf(cl->frontend, "Could not set up connection sharing"
logeventf(frontend, "Could not set up connection sharing"
" as downstream: %s", ds_err);
if (us_err)
logeventf(cl->frontend, "Could not set up connection sharing"
logeventf(frontend, "Could not set up connection sharing"
" as upstream: %s", us_err);
}
@ -2142,7 +2149,7 @@ Socket ssh_connection_sharing_init(
*/
/* 'logtext' is a local endpoint address */
logeventf(cl->frontend,
logeventf(frontend,
"Using existing shared connection at %s", logtext);
*state = NULL;
@ -2159,12 +2166,11 @@ Socket ssh_connection_sharing_init(
*/
/* 'logtext' is a local endpoint address */
logeventf(cl->frontend, "Sharing this connection at %s", logtext);
logeventf(frontend, "Sharing this connection at %s", logtext);
*state = sharestate;
sharestate->listensock = sock;
sharestate->connections = newtree234(share_connstate_cmp);
sharestate->cl = cl;
sharestate->server_verstring = NULL;
sharestate->sockname = sockname;
sharestate->nextid = 1;